package com.swust.diy;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;

//方式三：
@Aspect //标注这个类是个切面
public class AnnotationPointCut {
    @Before("execution(* com.swust.service.UserServiceImpl.*(..))")
    public void before(){
        System.out.println("========方法执行前=======");
    }
    @After("execution(* com.swust.service.UserServiceImpl.*(..))")
    public void after(){
        System.out.println("=======方法执行后==========");
    }

    //在环绕增强中，我们可以给定一个参数，代表我们要获取处理切入的点
    @Around("execution(* com.swust.service.UserServiceImpl.*(..))")
    public void around(ProceedingJoinPoint joinPoint) throws Throwable {
        System.out.println("环绕前");
        //执行方法
        Object proceed = joinPoint.proceed();
        System.out.println("环绕后");

//        Signature signature = joinPoint.getSignature();//获得签名
//        System.out.println("sin=gnature"+signature);
//        System.out.println(proceed);
    }

}
